Sunday, January 18, 2009

Soft Focus Filters in the Darkroom

What is a soft focus filter?

  • a piece of material, usually glass or plastic that has an uneven or dimpled surface
  • filter is placed on the front of the lens to "soften" the image by slightly blurring it
  • you can use nylons or vaseline

Movement for Effect

  • use a long exposure (so close down aperture) in order to really control the amount of movement

Spotting

Definition: The use of dyes or pigments to correct white specs and lines produced in the print by opaque defects or dust in the negative

  • usually done using dyes such as spot tone or marshalls
  • this will darken the area without affecting the surface reflectance of the paper
  • dyes are available in different colors and tones
  • sometimes when spotting colored negs we mix different pigments to match the tone of the print
  • for B+W paper, we also must be sensitive to the tone of the the black ink as some papers are cool and others are warm

METHOD

  1. Print should be place under strong illumination and should be carefully wiped of any dust.
  2. Protect the surface of the print (especially where you lay your hand) with the paper.
  3. To achieve the proper tone for the print, wet brush and wipe in the toner. Remove any excess water on the brush by lightly laying the brush on the sponge. Test the tone on a piece of photo paper of the same surface as your print. Try to achieve a tone slightly lighter than the area you would like to spot.
  4. To spot fine specs, a pencil can be used, rubbing the print lightly after applied.
  5. To spot larger areas it is usually better to stipple the area to equalize values and approximate the look of grain.

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